What Is The Difference Between A Hammer Drill And A Hammer Drill

What is the difference between a drill and a drill perforator. A versatile and common construction tool, at first glance very similar to a hammer drill.

What is the difference between a drill and a hammer drill

what is the difference between a hammer drill and a hammer drill
  • What is the difference between a drill and a hammer drill
  • How to choose a puncher
  • How to choose a drill

The main differences of the tool

So, the main purpose of the rock drill is drilling holes in durable materials such as concrete, artificial and natural stone, as well as brick. This is possible thanks to particularly durable drills, which replace drills in the construction of the hammer drill. If you don’t really go into technical details, then we can say that one of the characteristic differences between a drill and a hammer drill is the principle of operation. That is, the hammer drill mechanism is configured for impact, while the drill operates on the principle of rotation. Simply put, a hammer drill knocks out holes, and a drill drills them. The impact principle, on the basis of which the hammer drill works, makes it possible to use the tool in work with high-strength building materials.

In addition, it is worth highlighting the differences in electricity consumption. Despite the impact principle of operation, the hammer drill requires much less power, which means that the tool is economical in energy consumption. But here it is worth noting that the hammer drill is still a professional tool and is more often used in large construction than in cosmetic repairs. Agree, not every repair requires gouging concrete reinforced walls or knocking holes in the stone. Therefore, the hammer drill is most often used in large-scale construction.

Drill benefits

A modern drill is a multifunctional tool, which is often equipped with an impact function. In addition, some models provide the ability to use perforating drills in the drill. But in this case, a special nozzle must be used, otherwise the instrument may be damaged. However, the main purpose of the drill is to drill soft building materials such as chipboard, wood and iron.

In home construction, some drill models can be used in a wider field of work. Thanks to the special additional attachments, the drill can be easily converted into a pump, construction mixer or nibbler.

Unlike a hammer drill, a drill is a more accurate and multifunctional tool that allows you not only to work with various materials, but also drill holes of a fairly small diameter.

Summing up the main differences between a drill and a perforator, it is impossible to say unequivocally which tool is more in demand in construction. Depending on the tasks and materials to be processed, it is advisable to use both a hammer drill and a drill. The main thing is. Clearly navigate the main purpose of each instrument.

The main differences of the tool

So, the main purpose of the rock drill is drilling holes in durable materials such as concrete, artificial and natural stone, as well as brick. This is possible thanks to particularly durable drills, which replace drills in the construction of the hammer drill. If you don’t really go into technical details, then we can say that one of the characteristic differences between a drill and a hammer drill is the principle of operation. That is, the hammer drill mechanism is configured for impact, while the drill operates on the principle of rotation. Simply put, a hammer drill knocks out holes, and a drill drills them. The impact principle, on the basis of which the hammer drill works, makes it possible to use the tool in work with high-strength building materials.

In addition, it is worth highlighting the differences in electricity consumption. Despite the impact principle of operation, the hammer drill requires much less power, which means that the tool is economical in energy consumption. But here it is worth noting that the hammer drill is still a professional tool and is more often used in large construction than in cosmetic repairs. Agree, not every repair requires gouging concrete reinforced walls or knocking holes in the stone. Therefore, the hammer drill is most often used in large-scale construction.

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What is the difference between a hammer drill and a hammer drill?

At first glance, these are two identical devices, differing only in weight and dimensions. However, if you look under the hood, you can see their fundamental differences. Let’s get it right.

Those of us who live in an apartment building have probably heard the sound of a hammer drill and hammer drill hammering into the next wall. But do you know how these two devices work and how they differ from each other? We will tell you about their fundamental differences and explain in which case it is worth buying a hammer drill, and when you can get by with a hammer drill.

The difference in the design of the striking mechanisms

Both devices have a percussion mode, but the mechanism for playing a beat is fundamentally different. The puncher is organized electro-pneumatic mechanism playing a beat. The engine rotates the shaft, the movement of which is converted into reciprocating piston movements. Compression is created between it and the striker, under the action of which the striker transmits the impact to the working nozzle (drill, chisel, drill or crown). Thanks to this work, the impact force is quite impressive, and the device can easily crush even the hardest concrete.

Drill Impact Mechanism has a completely different design. It consists of two ratchets (gears), one of which is movable, and the other is not. While the engine is running and the shaft is rotating, a rigidly attached ratchet causes the movable to move back and forth with a certain amplitude. Thus, the impact is transferred to the working attachment.

However, unlike a hammer drill, the drill itself transmits an impact impulse to the chuck itself, so the harder we press the drill against the concrete, the stronger the impact will be. However, no matter how we press the drill against the concrete (even with our whole body on it), we will not be able to achieve the same impact force as a hammer drill, since the amplitude at the contact of the ratchets is too small. So for hammer drills, the impact force can range from 1.5 J for the weakest to 20 J for powerful heavy models. For example, Bosch GBH 240 has an impact force of 2.7 J for a household punch, this is a common indicator, but it is also unattainable for a drill.

Difference in operating modes

The hammer drill has three modes of operation:

  • Chiselling,
  • Drilling,
  • Hammer drilling.

The first mode turns the hammer drill into a jackhammer, which allows you to hammer walls, dismantle old tiles and plaster, chisel a gutter for wiring, and much more. Impact drilling allows you to punch huge holes, for example for air conditioner mountings. No hammer drill is capable of this.

The drill has only two modes:

  • Drilling,
  • Hammer drilling.

But can a hammer drill completely replace a drill if it has more modes? In theory it can, but in practice everything is much more complicated.

First, the drill and hammer drill have different chuck rotation speeds. If a drill, for example, Makita HP1640, the rotational speed of the drill is 2800 rpm, then the rotary hammer is 1000 rpm or even less. These low speeds may simply not be enough to drill through sheet metal properly. But for drilling wood is quite enough.

Secondly, the punch chuck is not rigidly fixed on the axis of the device, so there will be a slight backlash during drilling. And if you use an adapter, then the backlash will be even greater. Because of this, there is a possibility of damage to the material that we are drilling. That is why it is necessary to use a hammer drill for drilling only when the beat of the drill does not damage the workpiece material or the drill itself. For the same reason, we recommend using large drills with a hammer drill to drill small holes in metal, wood crowns and other large bits. But drills thinner than 8 mm should be used with caution, as they can easily break due to backlash and beating.

Performance

At the same power of the tools, the hole diameter that can be obtained with a hammer drill is about 1.5 times the diameter that can be obtained with an impact drill. The difference increases even more if a core bit is used for drilling.

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Tool and fastening

The hammer drill tool used for drilling concrete walls is most often a winnowing drill.

For a hammer drill and a drill, drills and drills are mounted in cartridges, however, their design is very different for a hammer drill and a drill. For a quick tool change, the rock drills use the SDS-plus, SDS-max and SDS-top tool clamping system (depending on the shank diameter, for more details about the hammer drill chuck, see the article Punch). The fixation in the chuck takes place using specially shaped grooves.

In a hammer drill, the tool has a certain degree of freedom with respect to the chuck in the axial direction, which makes it possible to reduce the load on the hammer during impacts.

In order to use a conventional drill in a hammer drill, you must either use a special adapter, or change the chuck to a cam one. In a number of models, thanks to a special fastening system, the change of chucks is easy and quick, while the chuck for a conventional drill must be included in the hammer drill kit. When using an adapter, a structure is obtained from two series-connected cartridges. SDS and three-cam. The disadvantage of this option is the lack of sufficient rigidity of the drill attachment and its runout during rotation.

How does a hammer drill differ from a drill

Punch device. How does he work. Features of the drill attachment. Cartridge. Impact energy. The cost

If you have decided to carry out repairs in the house yourself and intend to drill a large number of holes, you, of course, need perforator.

In terms of popularity, the puncher is in no way inferior electric drills, being one of the most popular electrical tools used in the repair business.

The main task of the rock drill is the operation of drilling holes in difficult materials such as concrete and stone. But, as an addition, there is also the possibility of drilling holes in metal, brick and other materials, the processing of which is often encountered during the repair process.

Despite the similarity of the principles of operation, rotary hammers differ in their characteristics from impact drills. This is due to the fact that drills are designed to work with common materials, not doing very well with hard ones.

The main difference between a hammer drill and a drill with an impact mechanism is that the hammer function of the drill is implemented purely mechanically, while the hammer drill uses pneumatics or an electromechanical device for this purpose.

Pneumatic rotary hammer drive the firing pin is pushed by a heavy mechanical piston striking the rig. The drill hammer function helps to increase the jolt force when drilling.

The hammer blow must be powerful enough to break the material. That is, the drill of a perforator does not drill the material, but shears it off.

Another difference between a hammer drill and a drill is design feature of the drill attachment. The hammer drill most often does not have a chuck with a cam clamp, like a drill, since such a design cannot guarantee protection against twisting of the drill, and also does not provide free play, which allows increasing the force of impact. It is for this reason that a new type of chuck (SDS) is used to mount the drill in the hammer drill.

This type of fastening provides free movement, ease of replacement, and also excludes the possibility of turning during operation. But at the same time, the chucks can be equipped with both key and fast chucks, which is typical for various models of even one manufacturer.

The presence in the hammer drill of a separate mechanism responsible for the impact, allows you to implement three modes of operation of the tool: conventional drilling, drilling with impact and only impact.

The main hammer is the impact mode. This is a mode designed for chipping, chipping off tiles, cutting out partitions when walls are destroyed. Impact energy is the main characteristic of a rock drill.

Unlike a drill, for which the main characteristic is power, namely impact energy defines maximum drilling diameter. Often, rock drills, with similar power, have different impact energies, which determines different types of work performed for them.

Impact energy is measured in joules, varying, depending on the model, in the range from 2 to 6 J. The larger this indicator, the more complex tasks the tool can perform: from mounting and drilling small holes to the destruction of capital partitions made of bricks and slitting in concrete

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Perforator cost, certainly more than drills with an impact function, but high reliability, durability and ease of use will greatly facilitate the implementation of self-repair in the house.

What is a puncher

During renovation and construction work, it is often necessary to drill holes in walls made of various materials. The best tool for this purpose is a hammer drill. It can be used to make through or blind holes even in such hard materials as reinforced concrete. Let’s take a closer look at what this powerful unit is.

Chuck and gearbox maintenance

You need to disassemble the puncher from the cartridge. To do this, remove the rubber ring.

Access to the retaining ring is opened, which is also removed.

Removing the outer casing gives access to the chuck mechanism. The pressure ring, spring and ball must be lubricated and free to move.

The rear housing cover is removed and the engine manifold is freed from the carbon brushes.

The front of the case is fastened with self-tapping screws. Unscrew them and take out the gearbox along with the engine rotor.

Before applying new grease, the used mass is removed, and the parts are washed with gasoline. First, the lubricant is applied in a thin layer to the most critical parts.

A thick layer of grease is applied to the gearbox housing until it is completely enveloped.

The serviced mechanism is placed back into the case. The assembly sequence is the reverse of the disassembly process.

How is it different from a hammer drill

Most of the operations available with a hammer drill can be done with an impact drill. The main thing, than the hammer drill differs from the hammer drill is the principle of receiving the working part of the reciprocating motion. In a drill, the blow is provided mechanically, and in a hammer drill, a pneumatic device is used. But the difference doesn’t end there. The electric motor in the hammer drill has more power than in the drill, respectively, the impact energy of the hammer drill is higher.

The undoubted advantage of rock drills is the presence of a release clutch. Sometimes, when drilling deep holes, the drill gets jammed. The drill body continues to rotate, twisting hands, which can lead to injuries. In the hammer drill, stopping the drill when it gets jammed is less dangerous, it triggers a clutch that separates the rotating shaft and the impact mechanism.

Types of punchers

The difference between rock drills is not only in their power, but also in the location of the electric motor. There are models with horizontal and vertical drives.

  1. The vertical motor allows for more power and impact force. The significant weight of such models limits their use by the height of the rise from the level of the worker’s feet. The purpose of heavy rock drills is the production of holes of a fairly large diameter (over 20 mm), crushing of monolithic blocks.
  2. Lightweight tools with horizontal motor allow one-handed operation. With their help, they prepare the fastening of gypsum plasterboard partitions, drill holes up to 20 mm, groove, make niches for wiring products.

SDS-max drills feature increased liner-to-clamp contact area and are used in powerful rock drills for drilling large holes.

Almost all rotary hammers are powered by a 220 V electrical network. Less common are portable models with a built-in rechargeable battery. Their use is justified if it is impossible to ensure the stationary or temporary availability of a standard electrical network at the workplace.

How to care for your instrument

Every power tool requires periodic maintenance. All parts of the mechanisms are subject to wear during friction. Prevent premature abrasion of parts by regularly lubricating parts surfaces. Many users limit themselves to lubricating the drill shank: from it, oil gets on the chuck, and partially lubricates it. This is only justified while the instrument is under warranty. In addition to the cartridge, maintenance is required for the percussion mechanism, gearbox and electric motor, these actions require disassembling the case.

After the end of the warranty period, you can do it yourself. The main components of the hammer drill requiring careful maintenance:

  • Cartridge;
  • Reducer;
  • Engine.